books/apitue/01/ls.c

28 lines
476 B
C

#include <sys/types.h>
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv) {
DIR *dp;
struct dirent *dirp;
if (argc != 2) {
fprintf(stderr, "usage: %s dir_name\n", argv[0]);
exit(1);
}
if ((dp = opendir(argv[1])) == NULL) {
fprintf(stderr, "can't open '%s'\n", argv[1]);
exit(1);
}
while ((dirp = readdir(dp)) != NULL) {
printf("%s\n", dirp->d_name);
}
closedir(dp);
return(EXIT_SUCCESS);
}